612655870 has 32 divisors (see below), whose sum is σ = 1112253120. Its totient is φ = 242968320.

The previous prime is 612655861. The next prime is 612655891. The reversal of 612655870 is 78556216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738616 + ... + 739444.

It is an arithmetic number, because the mean of its divisors is an integer number (34757910).

Almost surely, 2^612655870 is an apocalyptic number.

612655870 is a deficient number, since it is larger than the sum of its proper divisors (499597250).

612655870 is a wasteful number, since it uses less digits than its factorization.

612655870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 612655870 is about 24751.8861907532. The cubic root of 612655870 is about 849.3216594880.

The spelling of 612655870 in words is "six hundred twelve million, six hundred fifty-five thousand, eight hundred seventy".